Use of CLOSED in Bugzilla (was) Re: [Bug 284853] ...

[Adrián Chaves Fernández]

I still think a person other than the author of the bug should verify it 
before the bug is closed. It does not need to be the reporter, it can be a 
fellow developer. It’s the most basic QA there is.

But yes, of course, you can just resolve and leave it up to whoever finds out 
it is not actually fixed to reopen it, the same you would do for a regression.